C++

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Beginners - May 2014 (Page 29)

Creating a space with an int variable in a 2d array

Hey! I'm a beginner and using c++, i was wondering how do you create a space with an int variable in an array. int Array = {{ ' ', 0, 1 , 2 , 3, 4 ,5,...

[16 replies] Last: or send me a pm with your email and i will reply to it (by Codermik)

by Huppa

Line Functions (Slope & Direction)

Hello! - My task is to: Write a program with modular structure that asks the user for two points on a line, calculates the slope of the line, and determines...

[3 replies] Last: How would I go about checking slope within a function? Tad bit confus... (by MiiNiPaa)

by lizardqueen

help with using loops to find a maximum

I am trying to make a program that finds the maximum of a function f(x) over an interval a<=x <=b by starting at x=a with a step size of Δx.I want to evaluate ...

[1 reply] : 1. Format your code a bit more. 2. 'x++' is definitely not what you i... (by keskiverto)

by gloweye

Declaring "Global" variables

First a bit of background. Im very new to programming, having had my first college about it two weeks past now. before, knew about as much about c++ as my do...

[8 replies] Last: vector <int> mapx;//previous declaration of the "inside" vector nee... (by AbstractionAnon)

by Eraphine Astrid

array, strlen in C

if im going to enter some elements into an array, after entering the total number of elements(size of array). And im wandering the following code of (char test ...

[2 replies] Last: The parameter passed to strlen() is a pointer to the start of the arra... (by Chervil)

by hwy63

exam study question

Fill in the code below to reverse the order of array1’s contents and save it into array2 (Assume array1 contains valid data, and you may ONLY declare ONE extr...

[3 replies] Last: This still doesn't work out for me, thanks anyways! (by caleqele)

by Furjoza

Putting vectors in vector

Hello, I would like to use for loop to create vectors in my main vector. I would like the first vector to be of length of 1 another of length of 2 and the 'n' ...

[4 replies] Last: The ":" is part of the syntax of range-based for. That variant of for... (by keskiverto)

by Leslie26

value from integer variable to string variable

I want to assign the value from an integer variable to a string variable. If there integer variable had 1111 I want the string variable to have 1111 also. This ...

[4 replies] Last: Than you guys @NT3 @eyenrique @TheGentlmen (even though "if its to com... (by Leslie26)

by enemy

hash<<5

Dear All! Please, can someone make me clear this line: hash = ((hash << 5) + hash) + c; /* hash * 33 + c */ meaning: hash = ((hash << 5) + hash) + ...

[9 replies] Last: Hello, sorry for studpi q but just could not resist: is 0 also a sign... (by MiiNiPaa)

by josepho16

hangmann

making a hangman game. usually use a dictionary file but coded in a single word to guess instead. ("jumping") running this, it works for a while, but it never...

[3 replies] Last: Your welcome :) I had made some changes since my original post, and... (by Codermik)

by enemy

C++

Hello! Please, WHO is developing c++? In what (programming) language is written c++? Many thanks!

[2 replies] Last: Most C++ compilers are written in a combination of C and assembly, and... (by TwilightSpectre)

by enemy

Equotion explanation

Hello! Please, can someone show me, if possible on example, how to we get that: ((hash << 5) + hash) + c = hash * 33 + c Meaning: ((hash << 5) + hash) =hash ...

[1 reply] : I thought your other thread did already provide you enough information... (by keskiverto)

by enemy

Hash function

Hello! Is hash function part of mathematics and which part of? (which area of mathematics)? many thanks!!!

[2 replies] Last: Thanks!!! (by enemy)

by StingRaptor

Program to display SSN.

Good evening, basically I have a program that requires the following: - Prompt the user to enter a SSN. - Verify that it is in the correct format. xxx-xx-xxxx ...

[4 replies] Last: Doh, I can see what I did wrong. Thanks guys, it's perfect and it's w... (by StingRaptor)

by danzal

why does my answer get a lot of decimals

my answer is example 1.000000 why is it so ? #include <iostream> #include <iomanip> using namespace std; int main () { int invno, quantity; dou...

[1 reply] : #include <iostream> #include <iomanip> using namespace std ; int mai... (by JLBorges)

by closed account L6b7X9L8

So I'm gonna try SFML...

Well it's 5:13am and I'm trying to go through the SFML API to learn some of the functions.. Here is my code to make a snowman! I would like to know if any...

[10 replies] Last: I guess that's my queue to get some sleep. I appreciate the help, this... (by closed account L6b7X9L8)

by ak16

Proxy Object

Hi friends, can any one please help me to understand what is proxy object and what really the situation comes when we should use use proxy object? I tri...

[3 replies] Last: thank you guys. As i understood , proxy object is just like a inter... (by ak16)

by gghf

I cant find where to put friend when describing the class

http://puu.sh/8KePg.png I keep trying to find where to put 'friend' when I want to define the class outside in this format in the screenshot i included... I ...

[1 reply] : http://www.learncpp.com/cpp-tutorial/813-friend-functions-and-classes/... (by closed account j3Rz8vqX)

by road

read 1D array, get count and total

Need to figure out how read a 1D array from a file to get the total count of numbers and and the sum of the numbers in an array. The number of numbers in the a...

[1 reply] : How would you read data from a file?http://www.cplusplus.com/doc/tutor... (by closed account j3Rz8vqX)

by Valandu

Q: Modifying 2D array of char in void func

I'm currently stuck on a problem where I am passing a 2D array of char and trying to modify its values, but my function is designed to return a bool; So I'm run...

[2 replies] Last: Wow, that's an embarrassing mistake. Thank you for opening my eyes. -_... (by Valandu)

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